Pulsed eddy current (PEC) non-destructive testing and evaluation (NDT&E) has been
around for some time and it is still attracting extensive attention from researchers around the …

Aircraft structures are exposed to a variety of operational and environmental loads that can
cause structural deformation and fractures. Structural Health Monitoring (SHM) has emerged …

The objective of this study is to identify defects such as surface cracks, subsurface defects
and metal losses using feature based pulsed eddy current sensors. A new feature, termed …

A robust feature in multi-frequency eddy current (MEC) testing has been found that can be
directly linked to the thickness of the plate under test. It is shown mathematically that the …

The Pulsed Eddy Current (PEC) technique is an effective method of quantifying defects in
multi-layer structures. It is difficult to detect defects in riveted structures of aging aircraft …

An edge displacement sensor is one of the key technologies for building large segmented
mirror astronomical optical telescopes. A digital interface is one novel approach for sensor …

Research in nondestructive evaluation is constantly increasing the sensitivity of detection of
small cracks embedded deep in layered aircraft structures. Pulsed eddy-current (PEC) …

Nonlinear Output Frequency Response Functions (NOFRFs) are a series of one-
dimensional functions of frequency recently proposed by the authors to facilitate the analysis …

Magnetic flux leakage (MFL) techniques have been widely used for non-intrusively
inspecting steel installations by applying magnetization. In the situations where defects may …

High lift-off inspection arising from thick insulation and requirement to protect probe from
weld zones are challenges to pulsed eddy current (PEC) testing. In traditional PEC probe …